Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The start of December comes with a reduction in the average high-temperature, receding from a chilly 43.5°F (6.4°C) in November to a subzero cold 29.7°F (-1.3°C). During December, the average low-temperature is 19°F (-7.2°C).Humidity
The average relative humidity in December in Geneva is 84%.Rainfall
In Geneva, Iowa, in December, during 5.8 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 146.2 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Geneva, during December, snow falls for 13 days and regularly aggregates up to 4.13" (105mm) of snow. In Geneva, during the entire year, snow falls for 56 days and aggregates up to 24.45" (621mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:39 pm. On the last day of December, in Geneva, Iowa, sunrise is at 7:42 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December in Geneva is 4.3h.UV index
In Geneva, Iowa, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is December in Geneva?
What is the average humidity in December in Geneva?
How many days does it rain in December in Geneva?
How much does it snow in Geneva in December?
What is the month with the shortest days in Geneva?
How many hours of daylight does Geneva have in December?
When are sunrise and sunset in December in Geneva?
How long on average sun shines in December in Geneva?
What is the UV index intensity in December in Geneva?
Average temperature in December
Geneva, IA
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 19°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Geneva, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Geneva, IA
- Average wind speed in December: 10.4mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in December
Geneva, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Geneva, IA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is June (4.69").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Geneva, IA
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is June (20.2 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Geneva, IA
- Average snowfall in December: 4.13"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Geneva, IA
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Geneva, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Geneva, IA
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in December
Geneva, IA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Geneva, IA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in December
Geneva, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Geneva, Iowa, USA
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